Dumping-vehicle.



No. 893,159. l PATBNTBD JULY 14, 1908. J. MG00DWIN. DUMPING VEHICLE.

APPLICATION FILED MAY 15,1906.

3 SHEETS-SHEET 1.

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.PATENTED JULY 14, 1908. J. M. GOODWIN.

DUMPING VEHICLE.

APPLICATION PILEDMAY 15.1906.

3 SHBBTS-SHEET 2.

Attest:

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JOHN M. GOODWIN, OF MOUNT VERNON, NEW YORK.

DUMPING-VEHICLE.

Specification of Letters Patent.

, Patented July 14, 190s.

Application filed May 15, 1906. Serial No. 316,956.

and consists in certain improvements in the arrangement and disposition ofthe valves of the cargo receptacles thereof, in improvedV means for controlling the operation of said valves, and in other improvements looking toward reduction of weight and increase of cargo capacity, all of which will be hereinafter fully described and more particularly pointed out in the claims.

In the accompanying three sheets of drawings forming a part hereof, Figure 1 is a vertical transverse section of a flat bottomed vehicle embodying my invention; Fig. 2 is a side elevation of one end of such vehicle with parts broken away to show the hinge and valve controlling mechanism; Fig. 3 is an enlarged sectional detail on line III- III of Fig, 2; Fig. 4 is a side elevation of the hinge and controlling apparatus with parts broken away; and Fig. 5 is a sectional view of Fig. 3 on the line V-V thereof.

Referring to Figs. 1 and 2, the cargo receptacle of the vehicle is formed by the end bulkheads 1, and side-girders 2 secured by their ends to said bulkheads in any suitable manner. The girders 2, as shown in the drawings, constitute the side walls of the receptacles and are formed of vertical flat plates of sheet metal reinforced at their upper margins by angle irons. The end bulkheads 1 and also such intermediate bulkheads as may be employed, are all mounted upon the center sills S in usual manner so as to form therewith a firm frame-work and support for the load.

The floor of the receptacle is composed enn tirely of gravity valves which extend longitudinally of the receptacle and preferably the entire distance between bulkheads. These valves are supported from beneath and may be released when desired to open up the entire bottom of the receptacle and allow the load to escape without restriction. Of these valves, the two which are located adjacent to the side girders and designated by numeral 4, 4, are pivotally supported on aXes located exterior of the cargo receptacle and so that they may swing open by a downward and outboard movement. When in closed position theyare horizontal and have their free edges resting upon the free or outboard edges of the center detent valves 5, which thereby form releasable supports for said marginal valves. The valves 5 are mounted to swing on a central longitudinal shaft 6 carried by suitable shaft standards' on the center sills S. On their under sides the center valves 5 are provided with depending strut brackets 7 having rollers adapted to rest upon the ends of the rotary detents 8 of the rock-shafts 9 so that the said valves may be supported in the horizontal position shown at the right hand side of Fig. 1, with the marginal valves 4 upon them, in which position they form a flat bottom for the receptacle.

When it is desired to dump the load, the

Vrock shafts 9 are turned outwardly and, the

center valves 6 being thus deprived of their means of support, drop to the position indicated at the left hand side of Fig. 1, thereby releasing the marginal valves 4, which latter may then swing downwardly and outwardly as above mentioned, under the pressure of the load. In their opened positions the center valves 5 rest with their outer edges adj acent to the tops of the outwardly inclined discharge chutes 3 so that they cooperate with said chutes to form a continuous inclined surface upon which the load may slide in its escape. The said chutes are carried by lateral brackets 3 bolted to the center sill and preferably have as slight pitch as is compatible with the described purpose.

The marginal valves 4 are made up of a number of contiguous bent sheet-metal blanks having flanges 4a (Fig. 2) by means of which the several sections are united. longitudinal cleat, in the form of an angle bar, 10 reinforces the hinged edges of the said united sections, and another cleat in the form of a Z-bar binds together the free ends of said sections substantially as shown in Figs. 1 and 2, so as to constitute a structural valve of great strength and extreme lightness. The vertical flanges 4"1L of each section, are further provided with narrow inwardly turned rims 4b, as shown in the drawings, which lend stiffness to the structure and also form a convenient means of connection for the retaining and replacing arm presently described.

The pivotal axes of the several valves which form the floor of the receptacle shown herein are located in substantially the same plane as said floor, and this plane is substantially coincident with the apex of the converging planes of the discharge chutes, thereby bringing the bottom of the receptacle as low as possible and providing for said receptaele the greatest possible capacity. Even with the' least practical-pitch of the discharge chutes the vertical space between the side walls of the vehicle and the said chutes is therefore necessarily more or less eonstricted, and provision must be employed for permitting the marginal valves 4, which swing in this space and have some considerable lateral dimension, to have a clear path for their opening movement so that they will not jam upon the chutes. For this purpose the valves of the present vehicle are double pivoted to the side walls of the receptacle by means of the hinge links 12 and so that they have the benefit of two pivotal axes upon which to turn. The hinge links 12 are pivotally connected to the under side of the valve at a point slightly inside of its outer edge, by means of the hinge blocks 13, 13 (Figs. 1 and 2) which are bolted through the united flanges 4a of two sections of the valve and extend out laterally from said fianges beyond the rims, as shown in Fig. 2, so as to enable the hinge links to be connected with them at considerable distance apart for reasons presently made obvious. The hinge blocks 13 are also provided with laterally extended lugs 14, constituting bearing seats which are adapted to rest against the middle portions of their adjacent links when the valve is closed, thereby preventing any pivotal movement of the valve with respect to said links as long as the free edge of the valve is supported in horizontal position by its center valve. The outer ends of the hinge links are pivotally supported upon the longitudinal shafts 15, the latter being'carried exterior of the receptacle by the brackets 16 presently described. With the foregoing construction it is plain that the valve may swing freely in the space above the discharge chute when the center valves have been released and provide ample escape for the contents of the receptacle.

A number of brackets 16 made up of sheet metal bent into a substantially U-shape and provided with suitable flanges, is secured along the lower margins of the side walls 2 of the receptacle, and these brackets are provided with depending perforated ears 16 which form the supports for the longitudinal shafts 15 above referred to. The central por* tions or fianges 16a of the U-shaped brackets are riveted to the side walls 2 and the flanges 16b are riveted to inclined exterior hanger plates 17, which plates are secured to the side walls at about their center line and hang downwardly and outwardly as clearly shown in Fig. 3. A longitudinal channel beam 17 may be and preferably is secured to the ends of the hanger plates and by the same rivets, to the brackets 16 for the purpose of additional reinforcement, and the brackets used therewith constitute spacing members between said beam and girder, for stiflening the sides of the receptacle.

In order to prevent the return of the valve to a vertical position or to such position would tend to obstruct the free escape of the load, this invention further contemplates the provision of means for retaining the valve in the opened position to which it may have been moved or swung by the load or other agency. Such means may be combined with the dumping valve in different forms of embodiment, all of which are included 'within the scope of this invention. But as shown in the present illustration of the invention the said means are constructed as follows: Between the perforated ears 16 of the shaft brackets, the shaft 15 carries two oppositely faced ratchet wheels 18 and. 1), both of which are fast on said shaft. The ratchet wheel 18 has an elongated squared or angular hub fast on shaft 15, and the hub of the retaining and replacing arm 20 is fitted on said hub and confined thereon by the ratchet wheel 19 also fitting the hub, the three parts just mentioned being all confined in position by the sideparts or ears 16 ofthe brackets (see Fig. 5). The hinge links 12 are located on the shaft on opposite sides of the pair of ratchet wheels just outside of said ears. The ratchet wheel 19 is provided with a springpressed pawl 21 carried by the pawl shaft 22, also journaled in the bracket 16, and the teeth of said ratchet wheel are so formed that when its pawl is in engagement therewith it prevents movement of the ratchet wheels in one direction, while the other ratchet wheel 1S is provided with a similar but opposite pawl 23 which is adapted to prevent rotation of the ratchet wheels in the opposite direction. A throw-out arm 24, carried by the pawl shaft 22 is located between the pawls 21 and 23, and provided with laterally extended pins 25 whereby rotation of the said pawl shaft in proper direction will serve to withdraw either of the pawls from engagement with its ratchet wheel. The pawl shaft 22 extends longitudinally of the vehicle to a point adjacent one of the end bulkeheads whereit is provided with a crank arm 26, connected with an actuating rod or handle 27 by means of which the said pawl shaft may be rocked in its bearings in either direction as above described. The handle 27 is provided with stop projections 28 (Fig. 1) which coperate with the staple 27, which guides it, to

hold the'pawl shaft in either extreme position and thereby hold either 0f the pawls out of engagement with its ratchet Wheel in obvious manner.

The arm 20, above referred to, is rigidly connected to the shaft 15 through the agency of the squared hub of the ratchet wheel 18,

and curves inward, as shown, with its free end passing into a staple 29 (Fi 2) riveted to the inturned rims 4lD of the va ve, the'said free end being permitted to have a sliding movement in the staple 29, if necessary.

In the operation of the foregoing apparatus, when the receptacle is to be dumped, the handle 27 is adjusted so that the pawl 21 is in engagement with the ratchet wheel 19, and when the valve is releasedby tripping the detent, and swings outwardly under the pressure of the load, the ratchet wheel 19 rides under its pawl permitting the valve to open freely but preventing its return to its vertical position or point of equilibrium, thereby retaining the said valve at a distance from the discharge chute and preventing its falling back toward the chute where it would obstruct the free passage of the escaping load, or at least constrict the discharge opening. When it is desired to replace the valve in closed position the handle 27 is reversely adjusted to withdraw pawl 21 from engagement with its ratchet wheel and replace pawl 23 in engagement with the opp ositely faced ratchet wheel 18. A crank or ratchet wrench may then be applied to the squared end of the shaft 15 and the valve thereby returned to its horizontal position in which position it is retained by the pawl 23 until the central detent valves are raised into su porting position beneath it, whereupon tlie position of the pawls is again reversed to put the receptacle in readiness for the next dumping operation.v

It will be obvious from the foregoing that the valves 4, 4 need not necessarily be pivoted to the shaft 15 and also that the hinge links 12 are not essential to the retaining effect produced by the clutch or ratchet mechanism, further more that such eect can, by obvious means, be produced by the application of the clutching mechanism directly to the valve hinge itself or to either of the pivotal axes of the said valve.

Having described invention what I claim and desire to secure by Letters Patent 1s:-

1. In a dumping vehicle, a cargo receptacle having a fiat horizontal bottom composed of marginal valves pivoted exterior of the said receptacle and detent valves pivoted centrally `of said receptacle, the pivotal axes of the several valves being located in substantially the same horizontal plane, in combination with releasable means located beneath said detent valves adapted to hold them in horizontal position, wherein they support the inboard edges of said marginal valves, and inclined discharge chutes below said valves. 4

. A2. In a dumping vehicle, a receptacle having side walls and dumping valves, in combination with hanger plates secured on the exterior of said side walls and brackets interposed between said walls and plates forming the pivotal supports for said valves.

3. In a dumping vehicle, a cargo receptacle having side walls, inclined hanger plates secured on the exterior thereof, hinge brackets secured between the lower margins of said Walls and plates, and dumping valves constituting the floor of said receptacle pivotally carried by said brackets.

4. In a cargo rece tacle having upright side Walls, longitudina dumping valves forming a bottom therefor, and means for releasably supporting said valves, in combination with inclined hanger plates secured to the exterior of said side walls at about the center thereof and sloping downward and outboard, and hinge brackets secured between the lower margins of said walls and plates, forming the pivotal support for said dumping valves.

5. In a dumping vehicle, a cargo receptacle having a side wall, U-shape sheet-metal brackets secured to said wall, a longitudinal shaft passing through perforations in said brackets and dumping valves for said receptacle supported to rotate on said shaft.

6. In a dumping vehicle, the combination with the side wall of the cargo receptacle, and the hanger plate secured thereon, of a hinge bracket interposed between said parts and formed out of sheet metal provided with anges adapted to be riveted respectively to said side wall and hanger plate.

7. In a dumping vehicle, the combination with the side wall of the cargo receptacle and the hanger plate secured thereto, Yof a sheet metal hinge bracket interposed between said parts and having perforated ears depending eloW said hanger-plate, and a valve hinge shaft held in said ears.

8. In a' dum ing vehicle, the combination of the ivoted inge links, a dumping valve pivota ly connected to said links, a shaft located outboard of said valve and means independent of said links adapted to'be operated y said shaft for replacing the valve in closed position.

9. In a dumping vehicle, a dumping valve adapted to form a portion of the load carrying iioor of the cargo receptacle and hinged to said receptacle t0 open outwardly and beyond its point of equilibrium, in combination with means associated withthe hinged end of said valve for retaining it automatically in its said open position.

10. In a dumping vehicle, a cargo receptacle having a dumping valve adapted when closed to constitute a portion of the load carrying floor of said receptacle and hinged to the said receptacle to swing outboard beyond its point of equilibrium, and means for releasably supporting the free end of said valve, in combination with means, independent of said supporting means, for automatically rechute beneath the same, said valve beingA hinged to swing first toward and then away from said chute in its opening movement, in combination with means for automatically retaining said valve in the opened position to which it swings.

13. In a dumping car, a cargo receptacle and a dumping valve hinged thereto, in combination withy a discharge chute located beneath said receptacle and valve and means associated with the hinged margin of said valve for retaining the same in an opened position.

111. In a dumping ear, the combination of a cargo receptacle, a dumping valve hinged thereto and means adapted to move concentrically with said valve for retaining the same in an opened position.

15. In a dumping car, the combination of a cargo receptacle, a dumping valve hinged thereto, automatic means adapted to move concentrically with said valve for retaining it in anl opened position and a controlling handle located at the end of the car for rendering said automatic means inoperative for its said purpose. d

16. In a device of the class described, a shaft, links pivotally carried thereon, a dum ing valve pivotally connected with said inks and adapted to open downwards, and an arm on -the shaft connected with said valve, in combination with a discharge chute beneath the valve and means acting on said shaft land arm for automatically retaining the valve in an opened position.

17. In a dumping vehicle, the combination of a dumping valve, a means of pivotal support therefor, and mechanism adapted to be set in alternative position to prevent either the closing or the opening movement of said valve.

18. In a device of the class described, the combination of a cargo receptacle, of a dumpin valve, mechanism associated with said va ve adapted to lock said valve at different points in its opening or closing movement, and means located at the end of the said receptacle for setting said mechanism to produce such alternative effects.

19. In a dumping car, the coinbinatimi with a hinged dumping valve and a ratchet mechanism located at the hinged end of said valve and normally adapted to hold the same in the position to which it opens, and a handle at the end of the car connected with said mechanism and adapted to render the same inoperative.

20. In a dum )ing vehicle, a hinged dumping valve and a on gitudinal rotary shaft connected to turn with said valve, in combination with means operable from the end of the vehicle for preventing rotation of said shaft and valve alternatively in either direction.

21. In a device of the class described, a hinged valve adapted to open by its gravity, a rotary shaft adapted to turn in unison therewith, a ratchet wheel connected to said shaft and a p awl cooperating with said ratchet wheel to hold said valve and shaft in an opened position.

22. In a device of the class described, a hinged dumping valve, a rotary shaft adapted to turn with said valve, double-acting ratchet-wheel mechanism connected to said shaft, and pawls cooperating with said ratchet mechanism, in combination with means for withdrawing one or the other of said pawls from engagement with its ratchet wheel.

23. In a dumping vehicle, a dumping valve, a rotary shaft, and a pair of hinge links supporting said valve from the shaft, in combination with an arm fast on said shaft and said arm having its free end adapted to engage said valve.

24. In a dumping vehicle, a rotary shaft, a pair of opposite ratchet wheels on said shaft, and a dumping valve pivotally connected to said shaft on opposite sides of said pair of ratchet wheels, in combination with an arm carried by said shaft between the points of connection of said valve and. ad apted to engage said valve.

25. In a dumping vehicle, a releasable dumping valve, a rotary shaft, a ratchet wheel fast on said shaft and. provided with an angular hub in combination with a valveengaging arm fitted on said angular hub, and a pawl for engaging said ratchet wheel.

26. In a dumping vehicle, a valve replacing and retaining shaft, a ratchet wheel fast thereon and provided with an angular hub, an oppositely faced. ratchet wheel fitted on said angular hub, and a pawl for each ratchet wheel.

27. In a dumping vehicle, a dum )ing valve formed. of flanged sections united. by their contiguous flanges, hinge blocks secured to the opposite sides of said united iianges, a pair of hinge links connected to said blocks, and a valve-engaging arm located between said hin e links.

28. In a device of t e kind described, a valve-sup ortin shaft, a dpair of opposite ratchet wheels t ereon, an a paWl for each ratchet Wheel, in combination With a second shaft and means carried thereby for throwing either pawl out of engagement with its ratchet wheel. v

29. In a device of the kind described7 a dumping valve and means for alternately preventing movement thereof in opposite directions, comprising two op osite ratchet Wheels and pawls respective y therefor, in combination with a paWl shaft upon which said pawls are mounted and means carried by said shaft for disconnecting either of said pawls.

30. In a device of the class described, a dumping valve comprised of a plurality of flanged sheet metal sections, united by their contiguous flanges, hinge blocks secured to opposite sides of said united flanges and hinge links, adapted to support said valve, secured to said hinge blocks.

In testimony whereof, I have signed my name to the specification in the presence of@ two subscribing witnesses. A

JOHN M. GOODWIN. Witnesses:

A. A. LORZER, H. G. KIMBALL. 

